radeonsi: add workaround for issue 2647

radeonsi: add workaround for issue 2647

For unknown reasons pixel shaders in KSP game get executed with
infinite interpolation coefficients and this causes an infinite
loop in the shader.

This commit adds a hacky workaround that kills pixel shaders if
invalid interp coeffs are detected and enables it for KSP.

Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/2174
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/2647
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4700>